| PAN/CA共混复合膜的气体分离与力学性能 |
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| 引用本文： | 谢林阳,聂飞,贺高红,谭明,冯敬海.PAN/CA共混复合膜的气体分离与力学性能[J].高分子材料科学与工程,2011(7):95-97,102. |
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| 作者姓名： | 谢林阳 聂飞 贺高红 谭明 冯敬海 |
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| 作者单位： | 大连理工大学精细化工国家重点实验室膜科学与技术研究开发中心;大连理工大学应用数学系 |
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| 基金项目： | 新世纪优秀人才支持计划(NCET-06-0272);大连理工大学“数学+X”交叉项目资助 |
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| 摘 要： | 聚丙烯腈（PAN）具有较高的气体渗透性,但拉伸强度低,不适宜直接制膜。为达到气体分离膜在力学强度方面的使用要求,利用PAN与乙酸纤维素（CA）共混改善其拉伸性能。结果表明,采用相转化法制备的PAN/CA共混基膜,随着CA与PAN共混比的增加,拉伸强度有明显的上升趋势,由1.74MPa增加到2.08MPa。当共混比为0....
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| 关 键 词： | 聚丙烯腈 乙酸纤维素 共混 气体膜分离 力学强度 |
Gas Separation and Mechanical Performance of PAN/CA Blend Composite Membranes |
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| Linyang Xie,Fei Nie,Gaohong He,Ming Tan,Jinghai Feng.Gas Separation and Mechanical Performance of PAN/CA Blend Composite Membranes[J].Polymer Materials Science & Engineering,2011(7):95-97,102. |
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| Authors: | Linyang Xie Fei Nie Gaohong He Ming Tan Jinghai Feng |
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| Affiliation: | 1.State Key Laboratory of Fine Chemicals,R & D Center of Membrane Science andTechnology,Dalian University of Technology,Dalian 116012,China;2.Departmentof Applied Mathematics,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | Polyacrylonitrile(PAN) has good gas permeability but bad tensile strength.To meet the requirement on mechanical strength of gas separation membranes,PAN blend with cellulose acetate(CA) was used as membrane preparation material.The result shows that tensile strength of PAN/CA blend membranes are be enhanced obviously with the increase of PAN/CA blend ratio.When the blend ratio is 0.10,the tensile strength of support membranes can be increased from 1.74MPa to 2.08MPa.When the blend membranes are coated with 8%(%) poly(dimethylsiloxane),the selectivity of oxygen to nitrogen is 2.08 and the oxygen permeability can reach 100.5 GPU(1GPU=10-6cm3(STP)/ cm2·s·cmHg). |
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| Keywords: | polyacrylonitrile cellulose acetate blend gas membrane separation mechanical strength |
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